Home / 12,904.36-19,350.87-6,667.90

Finding the Fourth Proportional to 12,904.36, 19,350.87 and 6,667.90

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Solution

The fourth proportional to 12,904.36, 19,350.87 and 6,667.90 is: 9,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.36 : 19,350.87 = 6,667.90 : x
  2. Step 2: Convert to fraction form
    12,904.36/19,350.87 = 6,667.90/x
  3. Step 3: Cross multiply
    12,904.36x = 19,350.87 × 6,667.90
  4. Step 4: Simplify right side
    12,904.36x = 129,029,666.07
  5. Step 5: Solve for x
    x = 129,029,666.07/12,904.36
  6. Step 6: Final answer
    x = 9,998.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.